n. pl. moi·e·ties 1. A half. 2. A part, portion, or share. 3. Anthropology Either of two kinship groups based on unilateral descent that together make up a tribe or society. 4. Chemistry A well-defined part of a larger molecule. [Middle English moite, from Old French meitiet, moitie, from Late Latin medietās, from Latin, middle, from medius, middle; see medhyo- in the Appendix of Indo-European roots.] |
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